Botanical Survey of India | Flora of India

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Cadaba Forsskal


Scandent shrubs to small trees, unarmed; branches sharply tapering, thorn-like; twigs hoary pubescent or glandular hairy, often covered with waxy scales. Leaves simple to 2 - 5-foliolate; stipules small, inconspicuous. Flowers zygomorphic, in axillary or terminal racemes or corymbs, rarely solitary or fascicled. Sepals 4, biseriate, unequal; outer pair enclosing the inner. Petals 4, rarely 0 or 2, clawed. Disc spathulate, infundibular or trumpet-shaped, nectary often petaloid and toothed. Stamens 4 - 8, exserted; filaments unilateral, almost verticillate, on a short andropbore or connate with androgynophore. Ovary cylindric on elongated androgynophore, 1 (-2) locular; stigma sessile, capitate; ovules numerous, 2-seriate on 2 (-4) parietal placentae. Fruit indehiscent or tardily dehiscent, oblong-cylindric; seeds many, subglobose, embedded in scarlet pulp.

Africa, Middle East, South Asia extending to Malesia and Australia; ca 30 species, 2 in India.

Notes. Pollen longiaxis, 3- colporate, size ranging from 20 - 40 u (polar axis) and 12 - 13 u (equatorial diam.). Endoaperture circular or longate with well-developed or diffused operculum. Exine scabrate, striate or reticulate (Krishna Mitra in Bull. Bot. Surv. India 17: 14, t.1, f. 10 - 11. 1975).

Literature. JAFRI, S. M. H. (1953) A note on the taxonomy and distribution of some species of Cadaba. Pak. J. Forestry 8(2): 204 - 205. SAKHARAM RAO, J. (1955) Leaf variation within a species Cadaba trifoliata W. & A. J. Bombay Nat. Hist. Soc. 53(2): 288 - 289.



KEY TO THE SPECIES


1a. Leaves simple; petals 4 1. Cadaba fruticosa
b. Leaves trifoliolate; petals 2 2. Cadaba trifoliata


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